Home / 70,020-96,708.21-50,984.88

Finding the Fourth Proportional to 70,020, 96,708.21 and 50,984.88

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Solution

The fourth proportional to 70,020, 96,708.21 and 50,984.88 is: 70,417.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,020 : 96,708.21 = 50,984.88 : x
  2. Step 2: Convert to fraction form
    70,020/96,708.21 = 50,984.88/x
  3. Step 3: Cross multiply
    70,020x = 96,708.21 × 50,984.88
  4. Step 4: Simplify right side
    70,020x = 4,930,656,481.86
  5. Step 5: Solve for x
    x = 4,930,656,481.86/70,020
  6. Step 6: Final answer
    x = 70,417.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.